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http://dx.doi.org/10.3795/KSME-A.2002.26.10.2060

A Quantitative Performance Input for an Input Observer ( I ) - Analysis in Transient State -  

Jung, Jong-Chul (한양대학교 대학원 정밀기계공학과)
Lee, Boem-Suk (삼성테크원㈜)
Huh, Kun-Soo (한양대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.26, no.10, 2002 , pp. 2060-2066 More about this Journal
Abstract
The closed-loop state and input observer is a pole-placement type observer and estimates unknown state and input variables simultaneously. Pole-placement type observers may have poor transient performance with respect to ill-conditioning factors such as unknown initial estimates, round-off error, etc. For the robust transient performance, the effects of these ill-conditioning factors must be minimized in designing observers. In this paper, the transient performance of the closed-loop state and input observer is investigated quantitatively by considering the error bounds due to ill-conditioning factors. The performance indices are selected from these error bounds and are related to the observer robustness with respect to the ill -conditioning factors. The closed-loop state and input observer with small performance indices is considered as a well-conditioned observer from the transient perspective.
Keywords
Performance Index; Transient State; Robustness; Closed-loop State and Input Observer(CSIO); Condition Number;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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